Device for biological tests



FIG. 1 is a front elevational view of device for biological tests, showing my new design;

FIG. 2 is a top view thereof, but without the tube carrier;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is a perspective view from the rear, right and top of FIG. 1;

FIG. 5 is a perspective view from the bottom, rear and right of FIG. 1;

FIG. 6 is a left elevational view of FIG. 1;

FIG. 7 is a right elevational view of FIG. 1. 

The ornamental design for a device for biological tests, as shown and described. 